S4 (Berlin)

The S4 line number was used by the Berlin S-Bahn between December 1997 and June 2002. The line acted as a temporary route for the re-opened parts of the Berlin S-Bahn ring (Ringbahn in German) until the complete ring was fully re-opened in June 2002. The ring is now served by lines S41 (clockwise) and S42 (counter-clockwise).

S4 (Berlin)

The S4 line number was used by the Berlin S-Bahn between December 1997 and June 2002. The line acted as a temporary route for the re-opened parts of the Berlin S-Bahn ring (Ringbahn in German) until the complete ring was fully re-opened in June 2002. The ring is now served by lines S41 (clockwise) and S42 (counter-clockwise).